Fix pull-replication update head with Gerrit replica

I2211201f2 introduced the support for Gerrit replica
but all the tests were run against Gerrit primary with
the native REST-API, instead of using the pull-replication
plugin specific API executed through a filter.

The combination with Gerrit Issue 290794206 made
the bug invisible because all UpdateHeadActionIT tests
on replicas were still passing, because the underlying
Gerrit daemon was still a primary even if the test was
configured with container.replica = true.

Fix the implementation of the update head functionality
on Gerrit replicas and amend the validation tests for
making sure that it won't break again in the future.

Depends-On: https://gerrit-review.googlesource.com/c/gerrit/+/379199
Bug: Issue 290644998
Change-Id: I3af2d2a883ce948f421c9d51ca8d31eb5435c5ec

src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilter.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilter.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilter.java
index d646cfb..8feb825 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilter.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilter.java
@@ -321,7 +321,9 @@
   }
 
   private boolean isUpdateHEADAction(HttpServletRequest httpRequest) {
-    return httpRequest.getRequestURI().matches(".*/projects/[^/]+/HEAD")
+    return httpRequest
+            .getRequestURI()
+            .matches(String.format(".*/projects/[^/]+/%s~HEAD", pluginName))
         && "PUT".equals(httpRequest.getMethod());
   }
 

src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilterTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilterTest.java b/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilterTest.java
index 2ed1466..9e5ca8d 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilterTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/PullReplicationFilterTest.java
@@ -50,7 +50,8 @@
       String.format("any-prefix/projects/%s/%s~apply-object", PROJECT_NAME, PLUGIN_NAME);
   private final String APPLY_OBJECTS_URI =
       String.format("any-prefix/projects/%s/%s~apply-objects", PROJECT_NAME, PLUGIN_NAME);
-  private final String HEAD_URI = String.format("any-prefix/projects/%s/HEAD", PROJECT_NAME);
+  private final String HEAD_URI =
+      String.format("any-prefix/projects/%s/%s~HEAD", PROJECT_NAME, PLUGIN_NAME);
   private final String DELETE_PROJECT_URI =
       String.format("any-prefix/projects/%s/%s~delete-project", PROJECT_NAME, PLUGIN_NAME);
   private final String INIT_PROJECT_URI =

src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/UpdateHeadActionIT.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/UpdateHeadActionIT.java b/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/UpdateHeadActionIT.java
index f6e631f..d0f3214 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/UpdateHeadActionIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/pull/api/UpdateHeadActionIT.java
@@ -203,6 +203,7 @@
 
   @Override
   protected String getURLWithAuthenticationPrefix(String projectName) {
-    return String.format("%s/a/projects/%s/HEAD", adminRestSession.url(), projectName);
+    return String.format(
+        "%s/a/projects/%s/pull-replication~HEAD", adminRestSession.url(), projectName);
   }
 }